Vintage Royal Copenhagen Siena Vases Pair by Ivan Weiss 963/3740

A striking matched pair of vintage Royal Copenhagen Siena fajance vases, designed by Ivan Weiss and produced in Denmark circa the 1970s.

These sculptural oval-form vases feature a beautifully graphic botanical composition in black, deep brown, ivory, and ochre-gold, with stylized flowers and foliage layered over horizontal bands. The result is distinctly Scandinavian yet wonderfully expressive — a sophisticated blend of Danish Modern, Mid-Century Modern, and art pottery design.

Each vase is marked on the underside with the Royal Copenhagen crown and three-wave factory mark, FAJANCE, the numbers 963 / 3740, and additional hand-applied factory marks. The pair shares the same form and decoration, making them especially desirable displayed together.

Their flattened oval shape gives them a refined architectural quality and allows the decoration to read almost like a pair of small modernist paintings. Beautiful on a console, mantel, bookshelf, credenza, or styled as part of a collected ceramic display.

Maker: Royal Copenhagen
Collection: Siena
Designer: Ivan Weiss
Model / Decoration: 963 / 3740
Origin: Denmark
Date: Circa 1970s
Material: Glazed fajance / earthenware
Style: Scandinavian Modern / Danish Modern / Mid-Century Modern
Colors: Ivory, black, deep brown, ochre-gold
Quantity: Pair of 2 vases
Dimensions: Approx. 6.5" H × 4" W × 2.5" D each
Combined Weight: Approx. 1.82 lbs

Condition: Excellent vintage condition with no chips, cracks, or repairs observed. Light age-related surface and glaze variation may be present, consistent with vintage fajance and hand-decorated production. Please review all photos closely as they form an important part of the condition description.

A beautifully balanced matched pair with strong graphic presence and unmistakable Danish design character.